Density: O Level Physics Trivia Questions and Answers PDF Download eBook

MCQ: Mass of wood is 2600 kg and the volume is 5.2 m³, its density is

1. 500 kg m^-3
2. 50 kg m^-3
3. 5000 kg m^-3
4. 2 × 10^-3

MCQ: An object of mass 'm' raised to a height '2h' above the ground level possesses a gravitational potential energy of

1. 1 ⁄ 2 × mgh
2. mgh
3. 2mgh
4. m × g ⁄ 2h

MCQ: A pendulum bob moves at a speed of 2 m s^-1 and mass of 0.5 kg, its E_k would be

1. 1 J
2. 0.25 J
3. 0.5 J
4. 2 J

MCQ: Incident ray, reflected ray and normal lie at different points is a

1. true law of reflection
2. false law of reflection
3. neutral law of reflection
4. it's a law of refraction

MCQ: An iron wire resists 850 Ω at ice point and 860 Ω at steam point, and the resistance of wire is 853 Ω the room temperature would be

1. 10 °C
2. 20 °C
3. 30 °C
4. 40 °C